Pie crust roller



Filed Nov. 1'?, 1930 2 Sheets-Sheet l Aug. 16, 1932. D. w. SMITH PIE CRUST ROLLER 2 sheets-sheet 2 Filed Nov. 17, 19250 Patented Aug. 16, 1932 UNTE STATES PTENT GFF-ECE DENNIS W. SMITH, OF WILLVIET'IE, ILLINOIS, `ASSIGNOR TO COLBORNE MAN'IE'ACTUR- ING- COMPANY, OF CHICAGO, ILLINOIS, CORPORATION OF ILLINOIS PIE oirUsry norman Application filed November i7, 1930. `Serial No'. 496,201.

This invention relates to machinesy for rolling dough for various bakery purposes, particularly for rolling disk shaped piecrust or otherwise formed flat portions of dough.

The objects of the invention are to provide :automatic piecrust rolling means Y which avoids the necessityV of handling the product, back and forth rolling thereof which toughens the crust; to economize in the use of dusting Hour; and to produce aw uniform product at a high rate of speed.

These objects are accomplished by a construction shown in the drawings, wherein:

Figure l is a side view of the improved piecrust rolling machine.

F ig. 2 is a plan view of the machine.

With reference to the general features of the construction of this machine, it includes two pairs of rollers preferably arranged at right angles to each other, and in such relationship that portions of dough passing between one set of rollers may be conveniently transferred to the next set and rolled at right angles to the direction in which it was rolled by the rst set of rollers.

The rollers and the means for transferring dough from one set of rollers to the other are motor driven, and the machine is also provided with a driven conveyor by means of which portions of dough, preferably of cylindrical, rectangular, or more or less spherical form according tothe desired shape of the final product, are delivered to the first set of rollers and flattened in one direction thereby. When the dough leaves the second setof rollers, it is elongated in another direction and slides down an inclined platform for delivery to passing pie plates or other receiving means.

The rollers are conveniently adjusted toward and away from each other, in order that the same machine may be used for other purposes such as the rolling of doughfor the making of other bakery products.

`With reference to the drawings, the drive mechanism of the machine includes an electric motor 1 having a gear connection 2 to a main drive shaft 3, which carries one of the dough rollers 4, and a gear connection 6 to the shaft of a dough roller7 opposed to roller 4. The pair of'rollers 8 and 9 Vwhich first receive the portions of dough from conveyorv 10, are driven bythe spiral gear connection "1l and l2 between drive shaft 3 and the shaft 13 carrying roller 9. :55

Shaft 13 also carries a gear 1 4 meshing with gear 15 fast to the shaft 16 of roller 8.

rlhe rollers are adjustable toward and away from each other; for example, the eccentric bearing 17 therefor, Fig.` 1, which may be "A .adjusted angularly within theV fixed bearings 17 and 18 by means of a yoke handle 19.

Such adjustmentV carries the roller 8 toward and away from the roller 9.

The portions of dough which are brought to the first pair of rollers 8 and 9 are delivered thereto as the pocketmembers 20 of the conveyor pass aroundthe sprocket 21. A guide'member 22, comprising side-walls 23 and a rear wall 24, is mounted between the delivery end of the conveyor and the set of rollers 8 and 9, to? prevent dough or dusting flour from fallingv past the edges of the'rollers.

If the portions of dough delivered to the rollers Sand-9 are cylindrical or substantially spherical, then these rollers serve to roll such portions of dough into flat elliptical form. As the dough leaves the rollers 8 and 9, it slides down an inclined chute 25, Vwhich at its lower end curves into a horizontalv platform 26. It is delivered to the platform 26 by the aid of a rotating brush 27 This brush carries a sprocket 28, and is driven through this sprocket and a chain 29 extending between sprocket 28 and a sprocket on the shaft 16 of roller 8.

The elliptically rolleddough, as indicated at 30, Fig. 2, and on the platform 26, is pushed along the platform to between the rollers 4 `and 7 by means of a reciprocating pusher 31 reciprocated by mechanism receiving motion from pinion 34 fast to shaft 13, Fig. 1. The pinion meshes with a gear 35, with which is rotatably connected on a short shaft 36, a @am 37. The cam coacts with a roller V38 on l2y f 1,871,753

a bar 89 slidable Within the jixed bearings 40 dough inthe direction of their shorter axes and 41. The bar 39 is shifted in one direction to the second pair of rollers. p

Signed at Chicago this 13th day of Novemby the cam and returned by a spring 42, compressed between bearing 41 and a colla-r 43 on the end of a bar. At its forward end the bar 39 is pivotally connected to a bellcrank lever 44 which oscillates on post 45,v and is connected by a link 46 to the pusher bar 32.

ber, 1930.

The reciprocationv of the latter with the v pusherelement 31 serves to deliver the elliptically formed portions of dough SO'to thel rollers 4 and 7, by which the dough is rolled at right angles to the first direction of roll# ing, changing its form from substantially,- elliptical to substantially a disk form 47, as indicated inv Fig. 2. Y 1 Y The disks of dough then slide down the inclined platform-48 where they are delivered to pieplates which areconveyed past the platform by mechanism which may cooperatewith pie lling means operated in timed relationship with the dough roller.`

In the operation of the dough rolling Inachine, the twopairs of rollers 8-49 and 4-7 are continuously rotatedtoward eachother in the directionsindicated by the arrowson the drawings, by means ofagear drive con- Y nection to motor 1, Figure 1.

The conveyor 1() is also driven.y at a rate corresponding. yto the desired delivery rate of the dough roller. The portions of dough.

which are delivered byf the conveyor to the A first pair of rollers 8 and 9-are preferably of cylindrical or spherical form,incase the machine is Vused for'rollingrpiecrust, andare changed from this form into flat elliptical portions ofl dough bymeans ofthe rollers Y '8 and9. These partly rolledv elliptical portions of dough slide down the chute25p, .in the i direction l of their longer axes, andV are brushed along to in ffr-ont of the pusher 31by rotating brush 27, and then are slidby the pusher to b'etweenfthe rollersv4-and 7, -which serve to roll the elliptical; portionsof dough inl the direction' oftheir shorter axes, and deliver them in substantially diskv form to the inclined `platform l48.

While ybut one-specic embodiment of this invention is herein shownand described, del tails thereof may be altered withoutjdepart'- ing from the claim. 1' Y Y I c laim:

A- dough rolling machine` comprising a drive mechanism, two pairs offrollers driven by said mechanism, meansiffor conveying portionsofdough successively to one pair `of rollers which serve to rolli such portions into i flatV elongated forms, a chute extending downwardly from saidv pairl of rollers and terminating in a horizontal'extension thereoffin kfront of the second pair of rollers, a rotai'yxfeed brush forrurging the dough along s aidf chute, andl reciprocating means. for delivering the elongated formed portionsl of 

